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371 lines
10 KiB
C
371 lines
10 KiB
C
/*
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* gstvaapitexture.c - VA texture abstraction
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*
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* Copyright (C) 2010-2011 Splitted-Desktop Systems
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* Author: Gwenole Beauchesne <gwenole.beauchesne@splitted-desktop.com>
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* Copyright (C) 2012-2013 Intel Corporation
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* Author: Gwenole Beauchesne <gwenole.beauchesne@intel.com>
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public License
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* as published by the Free Software Foundation; either version 2.1
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* of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the Free
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* Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
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* Boston, MA 02110-1301 USA
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*/
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/**
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* SECTION:gstvaapitexture
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* @short_description: VA/GLX texture abstraction
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*/
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#include "sysdeps.h"
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#include "gstvaapidisplay_priv.h"
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#include "gstvaapitexture.h"
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#include "gstvaapitexture_priv.h"
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#define DEBUG 1
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#include "gstvaapidebug.h"
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#define GST_VAAPI_TEXTURE_ORIENTATION_FLAGS \
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(GST_VAAPI_TEXTURE_ORIENTATION_FLAG_X_INVERTED | \
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GST_VAAPI_TEXTURE_ORIENTATION_FLAG_Y_INVERTED)
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#define GST_VAAPI_TEXTURE_PRIVATE_QUARK gst_vaapi_texture_private_quark ()
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static GQuark
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gst_vaapi_texture_private_quark (void)
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{
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static gsize g_quark;
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if (g_once_init_enter (&g_quark)) {
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gsize quark = (gsize) g_quark_from_static_string ("GstVaapiTexturePrivate");
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g_once_init_leave (&g_quark, quark);
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}
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return g_quark;
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}
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gpointer
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gst_vaapi_texture_get_private (GstVaapiTexture * texture)
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{
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return gst_mini_object_get_qdata (GST_MINI_OBJECT_CAST (texture),
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GST_VAAPI_TEXTURE_PRIVATE_QUARK);
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}
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void
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gst_vaapi_texture_set_private (GstVaapiTexture * texture, gpointer priv,
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GDestroyNotify destroy)
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{
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gst_mini_object_set_qdata (GST_MINI_OBJECT_CAST (texture),
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GST_VAAPI_TEXTURE_PRIVATE_QUARK, (gpointer) priv, destroy);
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}
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static void
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gst_vaapi_texture_init (GstVaapiTexture * texture, GstVaapiID id,
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guint target, guint format, guint width, guint height)
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{
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texture->is_wrapped = id != GST_VAAPI_ID_INVALID;
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GST_VAAPI_TEXTURE_ID (texture) = texture->is_wrapped ? id : 0;
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texture->gl_target = target;
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texture->gl_format = format;
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texture->width = width;
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texture->height = height;
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}
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static void
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gst_vaapi_texture_free (GstVaapiTexture * texture)
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{
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gst_vaapi_display_replace (&GST_VAAPI_TEXTURE_DISPLAY (texture), NULL);
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g_slice_free1 (sizeof (GstVaapiTexture), texture);
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}
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GST_DEFINE_MINI_OBJECT_TYPE (GstVaapiTexture, gst_vaapi_texture);
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GstVaapiTexture *
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gst_vaapi_texture_new_internal (GstVaapiDisplay * display, GstVaapiID id,
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guint target, guint format, guint width, guint height)
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{
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GstVaapiTexture *texture;
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g_return_val_if_fail (display, NULL);
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g_return_val_if_fail (target != 0, NULL);
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g_return_val_if_fail (format != 0, NULL);
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g_return_val_if_fail (width > 0, NULL);
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g_return_val_if_fail (height > 0, NULL);
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texture = g_slice_alloc (sizeof (GstVaapiTexture));
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if (!texture)
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return NULL;
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gst_mini_object_init (GST_MINI_OBJECT_CAST (texture), 0,
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GST_TYPE_VAAPI_TEXTURE, NULL, NULL,
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(GstMiniObjectFreeFunction) gst_vaapi_texture_free);
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GST_VAAPI_TEXTURE_DISPLAY (texture) = gst_object_ref (display);
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gst_vaapi_texture_init (texture, id, target, format, width, height);
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return texture;
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}
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/**
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* gst_vaapi_texture_new:
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* @display: a #GstVaapiDisplay
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* @target: the target to which the texture is bound
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* @format: the format of the pixel data
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* @width: the requested width, in pixels
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* @height: the requested height, in pixels
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*
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* Creates a texture with the specified dimensions, @target and
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* @format. Note that only GL_TEXTURE_2D @target and GL_RGBA or
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* GL_BGRA formats are supported at this time.
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*
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* The application shall maintain the live GL context itself.
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*
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* Return value: the newly created #GstVaapiTexture object
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*/
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GstVaapiTexture *
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gst_vaapi_texture_new (GstVaapiDisplay * display, guint target, guint format,
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guint width, guint height)
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{
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GstVaapiDisplayClass *dpy_class;
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g_return_val_if_fail (display != NULL, NULL);
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g_return_val_if_fail (gst_vaapi_display_has_opengl (display), NULL);
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dpy_class = GST_VAAPI_DISPLAY_GET_CLASS (display);
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if (G_UNLIKELY (!dpy_class->create_texture))
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return NULL;
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return dpy_class->create_texture (display, GST_VAAPI_ID_INVALID, target,
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format, width, height);
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}
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/**
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* gst_vaapi_texture_new_wrapped:
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* @display: a #GstVaapiDisplay
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* @texture_id: the foreign GL texture name to use
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* @target: the target to which the texture is bound
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* @format: the format of the pixel data
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* @width: the suggested width, in pixels
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* @height: the suggested height, in pixels
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*
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* Creates a texture with the specified dimensions, @target and
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* @format. Note that only GL_TEXTURE_2D @target and GL_RGBA or
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* GL_BGRA formats are supported at this time.
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*
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* The size arguments @width and @height are only a suggestion. Should
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* this be 0x0, then the actual size of the allocated texture storage
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* would be either inherited from the original texture storage, if any
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* and/or if possible, or derived from the VA surface in subsequent
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* gst_vaapi_texture_put_surface() calls.
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*
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* The application shall maintain the live GL context itself.
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*
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* Return value: the newly created #GstVaapiTexture object
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*/
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GstVaapiTexture *
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gst_vaapi_texture_new_wrapped (GstVaapiDisplay * display, guint id,
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guint target, guint format, guint width, guint height)
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{
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GstVaapiDisplayClass *dpy_class;
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g_return_val_if_fail (display != NULL, NULL);
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g_return_val_if_fail (gst_vaapi_display_has_opengl (display), NULL);
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dpy_class = GST_VAAPI_DISPLAY_GET_CLASS (display);
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if (G_UNLIKELY (!dpy_class->create_texture))
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return NULL;
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return dpy_class->create_texture (display, id, target, format, width, height);
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}
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/**
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* gst_vaapi_texture_get_id:
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* @texture: a #GstVaapiTexture
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*
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* Returns the underlying texture id of the @texture.
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*
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* Return value: the underlying texture id of the @texture
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*/
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guint
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gst_vaapi_texture_get_id (GstVaapiTexture * texture)
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{
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g_return_val_if_fail (texture != NULL, 0);
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return GST_VAAPI_TEXTURE_ID (texture);
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}
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/**
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* gst_vaapi_texture_get_target:
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* @texture: a #GstVaapiTexture
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*
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* Returns the @texture target type
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*
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* Return value: the texture target
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*/
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guint
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gst_vaapi_texture_get_target (GstVaapiTexture * texture)
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{
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g_return_val_if_fail (texture != NULL, 0);
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return GST_VAAPI_TEXTURE_TARGET (texture);
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}
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/**
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* gst_vaapi_texture_get_format
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* @texture: a #GstVaapiTexture
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*
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* Returns the @texture format
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*
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* Return value: the texture format
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*/
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guint
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gst_vaapi_texture_get_format (GstVaapiTexture * texture)
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{
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g_return_val_if_fail (texture != NULL, 0);
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return GST_VAAPI_TEXTURE_FORMAT (texture);
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}
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/**
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* gst_vaapi_texture_get_width:
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* @texture: a #GstVaapiTexture
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*
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* Returns the @texture width.
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*
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* Return value: the texture width, in pixels
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*/
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guint
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gst_vaapi_texture_get_width (GstVaapiTexture * texture)
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{
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g_return_val_if_fail (texture != NULL, 0);
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return GST_VAAPI_TEXTURE_WIDTH (texture);
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}
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/**
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* gst_vaapi_texture_get_height:
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* @texture: a #GstVaapiTexture
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*
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* Returns the @texture height.
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*
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* Return value: the texture height, in pixels.
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*/
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guint
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gst_vaapi_texture_get_height (GstVaapiTexture * texture)
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{
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g_return_val_if_fail (texture != NULL, 0);
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return GST_VAAPI_TEXTURE_HEIGHT (texture);
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}
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/**
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* gst_vaapi_texture_get_size:
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* @texture: a #GstVaapiTexture
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* @width_ptr: return location for the width, or %NULL
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* @height_ptr: return location for the height, or %NULL
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*
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* Retrieves the dimensions of a #GstVaapiTexture.
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*/
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void
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gst_vaapi_texture_get_size (GstVaapiTexture * texture,
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guint * width_ptr, guint * height_ptr)
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{
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g_return_if_fail (texture != NULL);
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if (width_ptr)
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*width_ptr = GST_VAAPI_TEXTURE_WIDTH (texture);
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if (height_ptr)
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*height_ptr = GST_VAAPI_TEXTURE_HEIGHT (texture);
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}
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/**
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* gst_vaapi_texture_get_display:
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* @texture: a #GstVaapiTexture
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*
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* Returns the #GstVaapiDisplay this @texture is bound to.
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*
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* Return value: the parent #GstVaapiDisplay object
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*/
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GstVaapiDisplay *
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gst_vaapi_texture_get_display (GstVaapiTexture * texture)
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{
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g_return_val_if_fail (texture != NULL, NULL);
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return GST_VAAPI_TEXTURE_DISPLAY (texture);
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}
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/**
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* gst_vaapi_texture_get_orientation_flags:
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* @texture: a #GstVaapiTexture
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*
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* Retrieves the texture memory layout flags, i.e. orientation.
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*
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* Return value: the #GstVaapiTextureOrientationFlags.
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*/
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guint
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gst_vaapi_texture_get_orientation_flags (GstVaapiTexture * texture)
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{
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g_return_val_if_fail (texture != NULL, 0);
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return GST_MINI_OBJECT_FLAGS (texture) & GST_VAAPI_TEXTURE_ORIENTATION_FLAGS;
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}
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/**
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* gst_vaapi_texture_set_orientation_flags:
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* @texture: a #GstVaapiTexture
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* @flags: a bitmask of #GstVaapiTextureOrientationFlags
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*
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* Reset the texture orientation flags to the supplied set of
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* @flags. This completely replaces the previously installed
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* flags. So, should they still be needed, then they shall be
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* retrieved first with gst_vaapi_texture_get_orientation_flags().
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*/
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void
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gst_vaapi_texture_set_orientation_flags (GstVaapiTexture * texture, guint flags)
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{
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g_return_if_fail (texture != NULL);
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g_return_if_fail ((flags & ~GST_VAAPI_TEXTURE_ORIENTATION_FLAGS) == 0);
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GST_MINI_OBJECT_FLAG_UNSET (texture, GST_VAAPI_TEXTURE_ORIENTATION_FLAGS);
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GST_MINI_OBJECT_FLAG_SET (texture, flags);
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}
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/**
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* gst_vaapi_texture_put_surface:
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* @texture: a #GstVaapiTexture
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* @surface: a #GstVaapiSurface
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* @flags: postprocessing flags. See #GstVaapiTextureRenderFlags
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*
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* Renders the @surface into the @texture. The @flags specify how
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* de-interlacing (if needed), color space conversion, scaling and
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* other postprocessing transformations are performed.
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*
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* Return value: %TRUE on success
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*/
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gboolean
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gst_vaapi_texture_put_surface (GstVaapiTexture * texture,
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GstVaapiSurface * surface, const GstVaapiRectangle * crop_rect, guint flags)
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{
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GstVaapiRectangle rect;
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g_return_val_if_fail (texture != NULL, FALSE);
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g_return_val_if_fail (surface != NULL, FALSE);
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if (!texture->put_surface)
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return FALSE;
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if (!crop_rect) {
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rect.x = 0;
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rect.y = 0;
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gst_vaapi_surface_get_size (surface, &rect.width, &rect.height);
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crop_rect = ▭
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}
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return texture->put_surface (texture, surface, crop_rect, flags);
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}
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